Cage for ball bearings



13, 1937. R U' J 2,076,921)

- CAGE FOR BALL BEARINGS Filed April 15, 1956 I'NVENTOR Rose-RTE RIM/6'5 ATTORNEY disposed web 1. web curved to fit the balls and adapted to con- Patented Apr. 13, 1937 7 2,076,920

UNITED STATES PATENT OFFICE CAGE FOR BALL BEARINGS Robert F. Runge, Philadelphia, Pa., assignor to S K F Industries, Inc., Philadelphia, Pa., a corporation of Delaware Application April 15, 1936, Serial No. 74,407

3 Claims. (01. 308-201) This invention relates to a cage for ball bear- H and the four rounding faces l2 formed in ings and preferably one which is formed from the cylindrical body portions 5. two similar sheet metal parts. The object of The cage is particularly designed for use in the invention is primarily to provide a light, an annular deep-groove bearing in which it is inexpensive, durable cage which has flexibility applied to the balls after these are assembled 5 in the parts where flexibility is required and between the inner and outer race rings and have rigidity in the parts where flexibility is not rebeen properly spaced apart one from the other. q Although but one form of my invention is il- In the drawing accompanying this specificalustrated in the drawing and description in detion and forming part of the application, one tail, yet it is apparent that changes may be 10 practicable formor embodiment of the invenmade within the scope of the claims without tion is illustrated, in which drawing: departing from the spirit of the invention.

Figure 1 is an elevation of one side of the Having thus described my invention, I claim Cage. and desire to secure by Letters Patent: Figure 2 is an inside elevation of one of the 1. A cage for ball bearings comprising a sub- 15 a cage parts, and stantially cylindrical body portion having open- Figure 3 is a section of a cage taken at about ings for the balls, a narrow, centrally disposed the plane of the line 3-3 in Figure 1. web curved to fit the balls and adapted to con- The preferred form of this cage is made of tact with them on a narrow zone at their rolling two identical sheet metal parts which, and when diameter, and side flaps bent up from the body 20 Suitably ed t GthBr, hold the balls of a portion and free of the web for engaging the ball bearing in proper relative positions. Each sides of the balls and laterally stabilizing the of these cage parts comprises a substantially cage. cylindrical body portion 5 having a series of 2. A cage for ball bearings comprising a sub- 5 openings 6, each constituting half of a ball stantially cylindrical body portion having open- 5 pocket. The body portion carries an outwardly ings for the balls, a narrow, centrally disposed Regarding the cage as a whole, that is having tact with them on a narrow zone at their rolltwo of the half members secured together, as ing diameter, and side flaps bent up from the for instance by means of rivets 8 passing body portion and tapering ofi toward the web 30 through holes 9formed in the flange members for engaging the sides of the balls for laterally 1, there is a cylindrical body portion composed stabilizing the cage. of two of the members 5 and upon which is car- 3. A cage for ball bearings formed of two ried the centrally disposed web which is shown identical sheet metal parts, comprising a subcurved as at l0 to fit the balls and adapted to stantially cylindrical body portion having open- 35 contact with them on a narrow zone at their ings, each constituting half of a ball pocket, a rolling diameter. There are, carried by the body narrow centrally disposed web curved to lit the portions 5, side flaps ll bent up from the body balls and adapted to contact with them on a portion and free of the centrally disposed web. narrow zone at their rolling diameter, there be- 0 The flaps are for laterally stabilizing the cage. ing side flaps bent up from the body portion and These flaps taper off toward the web. Owing free of the web for engaging the sides of the to their general formation they might be called balls for laterally stabilizing the cage, and eye-brow flaps, and in fact the cage itself means for securing the webs of the two parts will probably be known as an eye-brow cage. together.

Each of the ball pockets consists of two pairs ROBERT F. RUNGE. 45

of the curved surfaces l0, two of the eye-brows 

